什么是TA：Teaching Assistantship (TA)，A form of financial aid awarded to graduate students to help support their education. Teaching assistantships usually provide the graduate student with a waiver of all or part of tuition, plus a small stipend for living expenses. As the name implies, a TA is required to perform teaching-related duties.
什么是RA：Research Assistantship (RA)，A form of financial aid awarded to graduate students to help support their education. Research assistantships usually provide the graduate student with a waiver of all or part of tuition, plus a small stipend for living expenses. As the name implies, an RA is required to perform research duties. Sometimes these duties are strongly tied to the student"s eventual thesis topic.
如何申请：TA和RA属于服务性奖学金，获得此类资助者每周担任12-20小时的辅助教学或研究工作。这种经济资助只提供给硕士或者博士申请者。绝大多数的美国高校研究生院都设置这种资助，然而并非所有的此类资助都能覆盖一年中的全部费用，但多数都在全部金额的2/3以上。不过很多学校提供这种奖学金的同时，还会给学生免学杂费，也就相当于申请到“全奖”。在这里还有一点需要说明，TA/RA所得是要纳税的。
更多的，由于目前申请美国留学的人数众多，所以不光申请竞争激烈，奖学金申请竞争同样激烈，优秀的同学越来越多。在这种情况下，我们提醒大家亮点，如果要顺利申请到奖学金，首先要早规划留学，提高自己的硬件条件，其次就是要尽早申请，争取在时间上占有优势，剩下的，就要看运气了!
通过上面对什么是TA和RA美国研究生奖学金的解读，相信对于很多计划申请美国哥伦比亚大学的学生可以参考上面的信息来提前做好申请美国研究生的准备和规划。
